I believe the correct answer is A , but I am not 100% sure , hope I helped (:
Since someone would be performing wind sprint activities, it is guaranteed when performing any activity is to get better overtime so I would say to "work above your target heart rate"
Answer:
Because they can be really really bad for you and sometimes if they get too bad you could die. Or sometimes spread it to someone else.
Answer:
These are the corrected answers.
4) c) the common cold; the flu
1) true
6) d) bacteria; virus
